In 1995, the MLBPA and owners didn't reach a labor agreement until April 3. Spring training began on April 7. Most teams opened on April 26. I can't see any pitcher, today, signing up for anything close to a 19-day spring training leading into a full, or close to full, season.
Travis Sawchik MLB writer TheScore
Perhaps teams will begin with expanded rosters if labor talks drag and condense the spring training period (or worse), but reducing the spring period too much would seem to place serious risks on pitchers.
The owners waited 42 days after the start of lockout to counter the MLBPA offer.
Many pitchers do train more, sure. And training is much different and more effective, generally, I believe. But arms are still conditioned for six weeks of ST prep. That hasn't changed. Maybe spring training is too long for pitchers? Perhaps we will find out this year.